Now that everyone's caught up, you know that New York City may or may not be home to an elaborate network of underground tunnels for quick cattle herding. But cows aren't the only ones to have potentially mythical tales of living in NYC's underground; there's plenty more where that came from. Why, take rat kings for instance. And mole people. And even the occasional mutant ninja turtle.

So use your imagination, and show us what might be hiding right underneath our feet. And you'll notice in our example above (crafted by our own Nick Stango) that everyone's favorite avatar has already been used. Sorry guys, but Eric Limer's mug is out of commission for this round, because I know there's something better up your sleeve. I believe in you.

The original image is down below for you to use at your leisure. Submissions will be graded on originality, technique, and laffs; you'll have from now until 11:59PM this coming Tuesday, November 5 to submit your entries down below. We'll announce the lucky winners that Wednesday. And until then, best of luck to you all.